Function try_commit_range 

pub unsafe fn try_commit_range(
    base: *mut u8,
    start: usize,
    end: usize,
) -> Result<(), VmemError>

Available on crate feature lazy-commit only.

Fallible commit_range: Ok(()) on success (or was a well-formed no-op), Err(VmemError::invalid_argument()) if the offsets violated the contract (misaligned, or start > end), Err(VmemError) carrying the OS cause on genuine commit failure.

Safety

Same as commit_range.